1187042 has 8 divisors (see below), whose sum is σ = 1885356. Its totient is φ = 558592.

The previous prime is 1187023. The next prime is 1187047. The reversal of 1187042 is 2407811.

It can be written as a sum of positive squares in 2 ways, for example, as 1164241 + 22801 = 1079^2 + 151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1186999 and 1187017.

It is not an unprimeable number, because it can be changed into a prime (1187047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17423 + ... + 17490.

2^1187042 is an apocalyptic number.

1187042 is a deficient number, since it is larger than the sum of its proper divisors (698314).

1187042 is a wasteful number, since it uses less digits than its factorization.

1187042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34932.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1187042 is about 1089.5145708067. The cubic root of 1187042 is about 105.8819737701.

The spelling of 1187042 in words is "one million, one hundred eighty-seven thousand, forty-two".